Auto dumping-truck.



E. H. VINCENT.

AUTO DUMPING TRUCK.

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Patented Nov. 4, 1913.

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AUTO DUMPING TRUCK.

APPLICATION FILED JUNI: zo, 1911.

1,077,570. Patented Nov. 4, 1913.

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ERNEST HENRY VINCENT, QE EMERYVILLE, CALIFORNIA.

AUTO DUMPING-TRUCK.

Specification of Letters Patent.

Application led .Tune 20, 1911.

Patented Nov. 4, 1913.

serial No. 634,324.

To all whom it may concern:

Be it known that I, ERNEST HENRY VIN- cnN'r, a citizen of the United States, residing at Emeryville, in the county of Alameda and State of California, have invented new and useful Improvements in Auto Dumping-Trucks, of which the following is a specification.

This invention relates to dumpin trucks, and particularl to motor propelle trucks.

The object o the present invention is to provide a motor ropelled, self-dumping truck which is su stantial, powerful and durable; and to provide in combination with a motor driven frame a tipping body actuated by a power driven mechanism; and to provide means for automatically disconnecting the driving mechanism from the dumping mechanism.

The invention consists of the parts and the combinationand construction of parts hereinafter more fully described and claimed having reference to the accompanying drawings, 1n which:-

Figure 1 is a side elevation lin partial section of the rear portion of the truck frame and the dumping body. Fig. 2 is a plan view of the truck and body. Fig. 3 is an end 4 view of the body portion.

It is my purpose to provide an auto truck embodying a tipping or dumping body adapted to be actuated by a ower driven mechanism so that it may be ischarged of a full load at one operation, or may be discharged in fractions of a load, as the work in hand may require. To accomplish this purpose I employ a substantial frame 2, upon which is mounted a driving motor 3, by which power is transmitted by a shaft 5 .to a. transmission gearing indicated at 6, thence by suitable driving connections 7 to propel tie driving wheels 8.

Mounted upon and suitably attached to the truck frame 2 are appropriate tracks or rails 9, extending from approximately the center of the frame 2 to the rear and bending slightly downward, as at 10, at their ends.

Uponthe rails 9 travel bearing wheels 11, of which there are three on each side of a car or body 12, adapted to contain substance to be transported and discharged at diverse places. The tiltable receptacle or body 12 is longitudinally movable backwardly and forwardly over the rails 9 by appropriate mechanism, here indicated as a screw-shaft or worm 13, mounted in appropriate bearings 1-1, and being embraced by a threaded traveler or nut 15, which is pivotally connected, as by a pivot 1G to a bracket 17 secured to the bottom of the tiltable receptacle 12.

Power is derived from the engine shaft 5 and transmitted to the worm 13 by a suitable transmission device comprising a gear 18 mounted on the engine shaft, over which may run a belt or chain 19 driving a gear 20 secured to the worm shaft 13. The gear 18 may be loosely mounted upon the shaft 5 and be operatively connected thereto b a suitable form of clutch 21 which is shi ted into driving relation with the gear 18 by a lever 22.

In operation, when the loaded receptacle or body l2 is to be tilted over the frame 2 of the truck, the clutch 21 is thrown into driving engagement with the gear 18, thus transmitting power to and revolving the Worm 13, which in turn causes the traveler l5 to more rearwardly so that the rearrnost wheels il of the receptncie 12 will ride over tin-l ends of the rails at 10, while the rentrai bearing wheels 11 continue to move rearwardly upon the rails 9. Meanwhile the front end of tbe truck begins to lift from the tracks 9 as the rear end, which is provided with a suitable ate or closure 23, descends.

In or er to cause the tilting of the receptacle 12 to be regular in its movement and to positively cause the rear end to. descend at each rearward motion of the receptacle, and to relieve strain on the screw and body, I provide cam tracks 24, appropriately fastened as by rivets, bolts, or equivalent devices 25 to the truck frame 2. There is one of these `cam rails 24 on each side of the truck frame 2 ad their curvature or outline is such as to cause the forward end of the receptacle l2 to gradually lift from the rails 9 as the receptacle moves rearwardly. This lifting motion of the forward end of the receptacle 12 is caused by rollers 26 projecting transversely from the sides of the receptacle l2 upon shafts 27 which are vertically above the center of the foremost wheels 11` As the cam engaging rollers 26 encounter the cams 24, the body or rce tacle 12 is lifted at its forward end as tie rear end runs down the inclined portions 10 ofthe tracks 9. As the traveler 15 approaches the rearmost portion of the actuating screw 1??" the. cani rollers will ultimately be limita.`s

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is designed to stand at sucl'i an angle that all of the contents of the receptacle l2 will be discharged therefrom. Then by reverseler l5 advances toward the front of the truck and the receptacle l2 ie again brought into its normal horizontal position with all f of `the bearing wheels 1l resting upon the rails 9.

and is automatically locked in its closed position when the body is brought to a horizontal relation on the truck 2 by means of a latch 32, pivoted at 325 to the bottom of the body l2; the latch having a depending arni 34 engageable with a suitable or convenient portion otI the 'truck trame 2 when brought into Juxtaposition therewith. ing the direction or' rotation of the drivingr shaft 5 and the actuating worin '13, the travlt will now be seen that the purpose ol providing a pivotal eoi'inection betvi'eci'i the traveler' l5 and the tiltable receptacle 'l2 is to permit the latter to swing pivotally about the traveler l5 the latter moves toward the end et the truck.

To preventvii'ijury to the appar-situe, it is t llaving thus described my invention what I. claiin and desire to secure by Letters Patent is-- A. dumping truck including a wheel support, a pair ol' parallel longitudinal tracks mounted upon said support, the outer ends olA` said tracks extending in a downward diieriioii, a body, pairs of rollen carried by said body and cofiperating with said tracks, a .A-.orio screw rotatably ino-united between d tracks. a nut upon said worin screw, a bracliet rigidly eoniiet'fted to said body and hinged to said nut, said bracket being l0- cated substantially between one pair ol' said rollers7 a pair of cani rails rigidly mounted upon said :liiiiiiiorh means carried by said body and adapted to colfiei-ate with said able trip or appropriate device indicated as l a lever 30, mounted adjacent to the rear end of tlie truck and :ulaptcd 'io be engaged by the traveler l5 or suine other appropriate portion of the dumping mechanism as; the tilt able receptacle 12 approaches its rrarinost limit. The lever or trip l0 is; connected by which will be thrown out of operative rela tion with the rear i8 when the traveler eii gages the trip E50.

The gate or door 2Q of the body 12 unie-be opened either by hand or appropriate ineai'it;y

cani rails to tiit tlie body when the saine is moved reariiardlv upon the tracks, said Cain rail@` bring curved iu zich niaiiiiei' that the tilting' oi" 'said bod)v tali'es place about the pinti'e o'l said hinge as a center.

ln teatiiiiony whereof l have hereunto set t iiiy iiaiid in the presence oi tivo subsei'iliing a link 31 to the clutch opciatiii?"i lever 22.*. 

